Subject code: H04ab01c

Study | Naess et al. (2004): study NO Nord-Trøndelag 1984 |

Title | Diabetes Mellitus and Psychological Well-Being. Change between 1984-1986 and 1995-1997. Results of the Nord-Trondelag Health Study. |

Source | Journal of Diabetes and its Complications, 2004, Vol. 18,141 - 147. |

DOI | DOI:10.1016/S1056-8727(03)00036-9 |

Public | 20-90 aged, general public, Nord-Trondelag, Norway followed 1 year, 1985-1996 |

Sample | Non-probability chunk sample |

Non-Response | |

Respondents N = | 65599 |

Correlate | |

Author's label | Cheerfulness over time |

Page in Source | 144 |

Our classification | Long term happiness (< 10 years ago), code H04ab01c |

Operationalization | Selfreport on single question: Would you say you are usually cheerful or dejected? 1 extremely dejected 2 dejected 3 quite dejected 4 both dejected and cheerful 5 quite cheerful 6 very cheerful 7 extremely cheerful |

Remarks | Assessed at T1 (1984-86) and T2 (1995-97); average 11 years difference |

Observed Relation with Happiness | ||

Happiness Measure | Statistics | Elaboration/Remarks |

A-AOL-g-sq-v-7-a | r=+.39 | T1 retest |

A-AOL-g-sq-v-7-a | ES=+.18 | T1-T2 CHANGE in happiness Cheerfulness increased slightly |

Appendix 1: Happiness measures used

Code | Full Text |

A-AOL-g-sq-v-7-a | Selfreport on single question: Would you say you are usually cheerful or dejected? 1 extremely dejected 2 dejected 3 quite dejected 4 both dejected and cheerful 5 quite cheerful 6 very cheerful 7 extremely cheerful |

Appendix 2: Statistics used

Symbol | Explanation |

ES | EFFECT SIZE Type; descriptive statistic Meaning: Computation: T1-T2 mean devided by pooled SD Interpretation: ES<.20 trivial, .20>ES>.50 small, .50>ES>.80 medium, >.80 large effect Reference: Cohen |

r | PRODUCT-MOMENT CORRELATION COEFFICIENT (Also "Pearson's correlation coefficient' or simply 'correlation coefficient') Type: test statistic. Measurement level: Correlate: metric, Happiness: metric Range: [-1; +1] Meaning: r = 0 « no correlation , r = 1 « perfect correlation, where high correlate values correspond with high happiness values, and r = -1 « perfect correlation, where high correlate values correspond with low happiness values. |

Ruut Veenhoven, World Database of Happiness, Collection of Correlational Findings, Erasmus University Rotterdam.

http://worlddatabaseofhappiness.eur.nl